6
by Polikeit, Georg.
Published 1966
Book
7
Book
13
Published 1980
Book
14
Published 1986
Book
15
by Kunz, Frithjof., Thiel, Wera.
Published 1983
Book
17
by Hantzsch, Heinz
Published 1958
Book
18
by Rüthers, Bernd, 1930-
Published 1972
Book
19
Published 1976
Book